Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9468f5790907cf…

MALICIOUS

PDF

42.9 KB Created: 2020-08-15 09:50:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe1e2bd9d874aece12f6c40fbdc54d93 SHA-1: 824f54e961cbe56e6e32e256ee5aad781396e280 SHA-256: 9d9468f5790907cf7a50f14c9d1e8b2809bc5027ecf9b635aed29977c8d07577
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.ru/wb?keyword=rainbow%20fish%20pdf%20download' is the primary indicator of malicious intent. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, suggesting an attempt to distribute traffic or host malicious content across multiple domains. The document body, though heavily obfuscated, contains the same malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/wb?keyword=rainbow%20fish%20pdf%20download In PDF document text
    • http://rilujemu.miraclevalleyceylon.com/uploads/1/3/1/8/131857920/354243.pdfIn PDF document text
    • http://wekigavot.alexseyreyes.com/uploads/1/3/1/4/131438025/2833834.pdfIn PDF document text
    • http://files.mybrightdelights.com/uploads/1/3/1/4/131483317/5c5e3e7b38eeea5.pdfIn PDF document text
    • http://files.marlondance.com/uploads/1/3/1/3/131380005/b305644f910c97.pdfIn PDF document text
    • http://bupabox.svctm.org/uploads/1/3/0/8/130814017/5580212.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/95524361294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5778/8568/files/bekajosazejelobata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1591/files/65828319187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7684/5728/files/87891164633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/sejurejad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/liboramijeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1865/files/human_behavior_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41557636134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8057/2321/files/gifumapemebowuriselikedik.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9F 4860 bytes
SHA-256: 1524252ddde4d5cdf40402567156dc1ac435c2a831c7d223ee18d2c68ff3f6d7
font_01_sfnt_off00006d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D19 10412 bytes
SHA-256: 3c447c3761938f30bd73c307aebc15fdf8c5b3d1c57bb8a989d95f5e320d33cb
font_02_sfnt_off000090bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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